External Associated Account in Windows Server 2003 and Exchange 2003

Hi there,

I was working on two Active Directory Forest, Forest A has a disable
user account/email "AA". Then in forest B, we have an account "BA"
associated with it. As I know this is done by setting the
msExchMasterAccountSID field of "AA" with the ObjectID of "BA" and
granted "BA" all the "mailbox rights" to make this work.


I have a question about this setting. Because we can have multiple
accounts in Forest B can access "AA" . I know this is done by granting
all the accounts with "mailbox rights". But from the AD point of view,
which field or where stores this list? and how can we retrieve this
back? I really get stuck here. (


Any hints will be very helpful.


Many thanks


Stv